Oliver slagli



nected, in the manner show'n, to the fan, for the pur- I :the wheel E.

inttd tatet, stwtdbyijiira OLIVER SLAGLE, OF LONDON, -ASSIGNOR TOHIMSELF AND THOMAS H.

' FOULDS, OF CINCINNATI, OHIO LettersPatent- Nm 98,201, dated December21, 1869.

RAILROAD-CAR VENTILATOR.

w l K The Schedule referred tp in these Letters Patent and making partAof the same.

tical shaft of the wind-wheel E, united or connected by suitablegearing, which may be varied, .to produce 'any desirablerrelativc speedof' the fan. y

One thousand revolutions per minute, I deem 'suiicient to' produce thedesired current-of air within the car, when it is travellmg at the rateot' twenty miles per hour.

By this arrangement, the air which circulates inside of the car, toproduce ventilation, is free from all particles ot smoke and dust, or`other substances, and a To vall whom it may concern.- y I Be it knownthat I, OLIVER SLAGLE, of London,k Madison county, State of" Ohio, haveinvented a certain new, and useful Improvement in Car-Ventilators; `andIdo hereby declare the following to be a suipertains, toniake anduse it,reference being had to the accompanying drawings, making partof thissoecification.

- My invention consists of an apparatus for creating a strong current ofair through railroad-cars, &c., for` ventilation, or 4the prevention ofthe accumulation of dust in the cars, which apparatus 'is set forciblyin` the wind-wheel upon the outside of the car;

Any ordinary double-cylinder blower may be used instead ,of the fan B.A'

`The shield E prevents the air fi'on acting upon but one side of' thewheel E, and it carries au air-collector, G, which collects the air anddirects it into the wheel.

Sufficient distance is left between the shield, at the give the latterthe requisite velocity. l

My invention further 'consists of certain reversible devices, forcollecting and discharging the air, which adapt the apparatus for motionof the train iu either direction. r

In the accompanying drawings- Figure 1 is 'a perspective view, partly insection, which exhibits the arrangement and construction of my devices.

Figure 2 is a plan of the apparatus, with the aircollector adjusted forthe running of the train in one direction. f

Figure 3 is a sectional plan of the same, with the collector adjustedfor the opposite direction. v

a represents a perspective view of the winged wheel E, and case F, audfan B, with case A attached to the top of any ordinary car-roof; thewind-wheel E being upon the outside of the car, and the fan B and case Abeinglocated within the car;the apetures O being in the sides ofthefan-case A. Thewingedwheel E, on the top ofthe roof', is conreceptionand escape of the an'. The shield is pivoted at f, and is adapted toparin figs. 2 and 3, for the purpose of adapting the'apof the train.y nThe plate G is reversed by handle I, which extends man, o1 passengers.

place of fan B, if preferred, and many other modifications rnay be madein the apparatus, without materially changing the operation and result.

The force of air driven into the car by thisapparaas, to stop therevolution of the wheel entirely, when desirable. t

I claim herein as new, and of my inventionthe car-roof, driven by anoutside current ot' air, produced by the locomotion of the car, comingin contact with the same, in combination with the horizon- -tal fan B,located n pon a suitable shaft, geared tothe vertical shaft of' thewind-wheel E, when said blower is located within the dome ofthe car,substantially as pose of driving the same, and the gearing may ,beconstructed so that the fan has a greater velocity than The wheel E isdriven by the air, which is admitted at one side oi' the same, when thetrain is under ino tion, and this is sufficient, when properly geared,to give the fan one thousand revolutions per minute.

The wind-wheel E is propelled by an outside current'of air, produced bythe locomotion of the car, and should not be admitted into the car, astine particles of dust and smoke are inevitably admitted with allcurrents of air that would thus pass into the cer.

hand. v

OLIVER SLAGLE.

Fan B, in case A, islocated upon the inside of the Witnesses: car, andupon adilierent-shaft from the wind-wheel E, FRANK MILLWARD, such shaftbeing horizontal, and propelled by thever- E. E. WOOD.

current ofV air will be produced without reference to y,

sidesvand the plate G, to foren openings, H, for the tially rotate, inorder to reverse. the plate G, as shown y' paratus for operation ineither direction ofthe motion inside ofthe car, convenient to theconductor, brake- It 1s obvious that a rotary blower maybe used yinv 1.vThe wind-wheel E, located upon the outside oi

